Tjernlund PAI-1 & 2O Combustion Air In-Forcer 8504038 Rev A 05/01 - Manual (Page 15)

14
IN-FORCER MODELS PAI-10 & PAI-20 (0IL) TROUBLE SHOOTING GUIDE
Wiring not correct
No
Step 2.
When appliance is calling for heat measure for 115
volts across the Primary Control leads.
Result: 115 volts measured.
Step 1.
Recheck all wiring per the installation instructions.
Step 3.
Connect the BLACK, WHITE and GREEN wires in
the IN-FORCER directly to a constant 115 volt
power source.
Result: IN-FORCER runs constantly.
Wiring correct
Yes
Step 4.
Contact Tjernlund Products for further assistance.
Yes
Solution: Rewire the IN-FORCER per the
installation instructions or contact Tjernlund
Products for further assistance.
Solution: Contact appliance manufacturer
for further assistance.
No
Solution: Replace IN-FORCER motor.
Part # 950-3022
Note: For further assistance contact Tjernlund Products, Inc.
Technical Customer Service Department at 1-800-255-4208.
Wiring not correct
No No
SYMPTOM 1: IN-FORCER PAI-O (OIL) SERIES RUNS BUT BURNER DOES NOT FIRE
SYMPTOM 2: IN-FORCER PAI-O (OIL) SERIES WILL NOT RUN ON CALL FOR HEAT
Step 2.
With the appliance calling for heat and IN-
FORCER running, measure for voltage across the
YELLOW of Fan Proving Switch and WHITE of
Cad Cell Relay.
Result: Measure 115V.
Step 1.
Recheck all wiring per the installation instructions.
Step 3.
Repeat step 1 & 2 or contact Tjernlund Products
for further assistance.
Wiring correct
Yes
Solution: Rewire the IN-FORCER per the
installation instructions or contact Tjernlund
Products for further assistance.
Solution: Replace
Fan Proving Switch.
Part # 950-0452.
Solution: Clean intake
screen of clogged mate-
rial. Check for exces-
sive length or sharp
bends in discharge or
inlet vent pipe.
Note: For further assistance contact Tjernlund Products, Inc.
Technical Customer Service Department at 1-800-255-4208.